Valve



' VALVE Filed June 11, v1942 Patented Aug. 1, 1944 VALVE Carl R. Stone,Chicago, Ill., assignor to Crane Co., Chicago, Ill., a corporation ofIllinois Application June 11, 1942, Serial No. 446,648

Claims.

This invention relates to valves and more particularly to a novelradiator valve used in hotwater heating systems, one object being toprovide an improved hot-water radiator valve which is compact, simple inconstruction, efficiently performing and relatively easy to operate.

Another object of this invention lies in the provision of a hot-Waterradiator valve in which the' opening and closing movements of the discexert a desirable wiping action within the interiorof the valve casingthus removing any adhering foreign.

matter ordinarily tending to cause sticking.

A further object of the invention is to provide an improved mounting ofa butterfly Valve on'its stem thus facilitating the assembly of theparts and substantially reducing the cost of manu-Yl f:

facture of valves of this type.

The foregoing and such other objects and advantages as may appear or bepointed out as this description proceeds, are obtained in the structuralembodiments illustrated in the accompany` ing drawingin which similarparts are designated by the same reference characters in the severalViews, and in which Fig. l is a Vertical sectional assembly View of avalve embodying the invention in the closed position. k

Fig. 2 is a vertical sectional assembly view of a valve embodying theinvention in the partly open or throttled position.

Fig.'3 is a Vertical sectional assembly View of a valve embodying theinvention in the full or wide open position.

Fig. 4 is a plan perspective View of the novel valve disc whilepositioned at a Ll5-degree angle.

Fig. 5 is a vertical sectional view of the novel valve disc shown inFig. 4.

Fig. 6 is a vertical sectional View of a two-piece sheet metal valvedisc representing a modified embodiment of the invention and shown inassembly with the Valve stem (indicated by dotted lines).

Fig. '7 is a vertical sectional view of one of the identical halves ofthe novel modied two-piece valve disc shown in Fig. 6.

Fig. 8 is a plan perspective view of the valve disc face shown in Fig.7. Y

Referring now to the drawing and particularly to Fig. 1, within theangular valve casing generally designated I the non-rising valve stem 2is journally mounted and assembled in non-rotatable relation with thecircular sheet metal valve disc 3. The valve disc is shown in the closedposition in this gure, and in the partly open and full open positionsrespectively in Figs. 2 and 3. It will be seen that when in the partlyopen position the valve disc 3 maintains an oblique position withrespect to the line now, and when in the full open Will thus be furtherapparent that a QO-degree.

rotation of the stem 2 brings the disc to the half open or obliqueposition while a -degree rotation of the stem brings the disc to thefull open or horizontal position of Fig. 3.

Figs. 4 and 5 illustrate a preferred manner in which the sheet metalvalve disc or the like may be constructed. First, the disc may be slitacross the diagonal (line I5, Fig. 4) of the predetermined square orother polygonally shaped opening to be formed. A square aperture is thenpunched in the center of the disc 3the size thereof depending upon thecross-sectional dimensions of the endengaging portion of the stem 2. Theaperture may be punched by two operations, one in one direction and theother in the opposite direction so that the bent portions form anaperture angle designated as A in Fig. 5, with relation to the face ofthe disc. vObviously the disc may also be made in a cast metal,composition or otherwise suitably formed without departing from theinventive concept.

Referring again Vto Fig. l, it is seen that the stem 2 in its assemblywith the valve has its square or other polygonally shaped end portion I2inserted into the'punched aperture of the disc 3 andis guidedtherewithin by the angularly formed or bent portions I3 of the apertureddisc. Thus similarly the stem 2 assumes a position forming the angle Awith the vertical and horizontal line flow through the valve. It hasbeen found advantageous, for reasons to be discussed later, to makeangle A preferably equal to 45 degrees, but this may vary depending uponthe type of valve with which the stem and disc are assembled.

From the detail construction of the disc shown in Figs. 4 and 5, andfrom the assembly of the disc 3 with the stem 2 as shown in Fig. 1, itwill be apparent that no fastening is required to hold the stem and discin assembled relation, and as a consequence, an economical and simpleconstruction is made possible. Because the periphery of the disc 3 fitssnugly the bore I4 within which it lies makes it unnecessary to use anyixed attaching means between the ste-m and disc and this is trueparticularly realizing that the stem is relatively immovable axially.Absolute tightness in a valve of this type on hot water service is notessential or desirable; hence the fact that there is slight leakage pastthe disc in the closed position is not significant.

Referring again to Fig. 1, the upper portion of the stem. 2 whichextends exteriorly of the casing I is connected in the usual manner by asuitable means with thevalve handle 6, as for example, by means of thescrew II. A conventional packing nut 1, threaded to the extension 8 ofthe casing i may be used to compress the spring 9 which, in turn, exertspressure on the packing I0 in order to prevent leakage therepast. Theabove ldescribed concealed spring-loaded stuing box is .provedconstruction are twofold:

.manufacturing costs, and (b) mechanical. With the punched aperturepreferably make an angle of 45 degrees with the line flow. Thus it ispossible for the disc and stem to be assembled without any fasteningmeans. In the embodiment of the invention illustrated in Figs. 6, '7 and8, yaV

two-part disc is shown, consisting of similar faces 4 and 5 injuxtaposition forming the angle A (preferably 45 degrees) with the flatportion of the ,circular sheet metal faces. .In Fig. .-6 the ,double.faced disc is shown in assembly with'the stem 2 (represented in dottedlines). The Vassembly is made by inserting the stem 2 `into the squareaperture-so thatthe flat sides of the stem `coincide with the bent sidesof the punched aperture, and the stem 2 thus makes an angle of .45

degrees with the line Yof flow through the valve.

The respectivedisc faces may be joined by brazdiagonally extending valvestem having end portions which are square in cross-section, a circularsheet metal disc having a central square aperture punched therefrom, theformed sides of said aperture having an approximate angle of 45 degreeswith the face of the said disc, a square lportion of said valve stembeing held non-rotat- -ably with the sides of said square punchedaperture, whereby the circular disc is rotatable by the stem and guidedby means of peripheral con- -tact of lat least two diametrically opposedpoints ofthe said circular disc within the walls of the circular casingpassage during the course of revolving from vertical to horizontalplanes and vice versa.

.2. In =a radiator .valve having a casing with a passage therethrough, a.valve stem having a .square cross-section,acircular disc with opposedhalves in juxtaposition and yhaving complementary centralsquare punchedapertures, the sides of each of said apertures forming an angle of 45degrees with the faces of said valve disc, the said ing, welding,soldering or otherwise mechanically attached.

.I am aware that radiator valves of this general .type known as butteryvalves have been previously constructed in which the disc has beenplaced .obliquely within the valve casing, and

furthermore, I am aware that in previousV convstructions, the stem anddisc-have beenheld in .assembled relationship without a positive fasten-`ing means.

However, to my knowledge, no one has heretofore discovered nor utilizedthe advantages to be derived from using a-circular disc with-a polygonalaperture for receiving the stem `,preferably at an angle of 45 degreeswith the benefits above set forth.

The advantages to be derived from my im- (a) reduced regard tomanufacturing costs, it is apparent that no stem threads other thanwheel screw threads are used, and these may be dispensed with ifdesired; that the simple construction of the disc V4permits. stampingfrom Vsheet metal or the like,

since no specially finished or beveled edges are required. Regarding themechanical advantages of locating the operating means of the valveatanangle of 45 degrees from the line of vertical or .horizontal flow: (l)this arrangement allows additional clearance between the radiator andthe hand of the operator when engaging the handle, :and Iprevents thehand from coming in contact lwith the radiator and causing burningV orbruising; (2) a more natural hand grip is provided wby .the Ll--degreeangle of my .valvestem Vand Aoperating handle; (3) there r.islessllikelihood of :ka person. stepping on the .valve handle with theelfeot, since the ifi-degree angle does .not offer a rigid footing. Theusual practice of standingon the valve handle in order to reach anobject :above .the radiator is .a dangerous one both to theperson and tothe radiator .valve and its connections.

While the embodiments Ydescribed and illustrated to angle ivalves, itshould be pointed -out that valves constructed in accordance with thepresent invention may alsobe adapted to a straight-through or globepattern with union end. Therefore, I desire to lbe limited only by thescope of the appendedclaims.

I claim:

kand being inclined vat an angle of substantially 45 degrees with thesaid disc, the said stem being slidably movable relative to the inclinedsides of saidsquare punched apertures, whereby the disc revolves from avertical to a horizontal plane upon rotation of the said stem.

3. A radiator valve comprising, in combination, a casing having acircular passage therethrough, a valve stem, a circular flat plate disctransverse- `lymovable in and snugly fitted within the circular passage,the said valve stem engaging the said discand being substantiallyimmovable longitufdinally and forming an angle of approximately Vi5degrees with `the face of the said disc whereby rotation of the stemcauses the disc to revolve -from a vertical to a horizontalplane in saidcircular passage. A

4. In a radiator valve having a casing with a ,substantially circularpassage therethrough, a Avalve stem having portions which are polygonalin cross-section, a substantially circular disc having a centralpolygonal aperture whereby portions of the aperture define acute angleswith the opposite faces of the said disc, a polygonalv portion of saidlvalve stem being held non-rotat- .able..with the-sides of saiddiscaperture whereby the said disc ,is rotatable by the stem, the latterbeing diagonally positioned relative to the said -disc .and extendingtherethrough, the said disc .being guided vby means of a rotatingtangential `contact within the circular passage of the casing, :wherebywhen thevalve is in fully open position the said tangential contact ismade substantially at two points diametrically opposite defining a line.therebetween atright angles to the axis of the said stem. Y

'5. 'A radiator valve lor the like comprising a casing having asubstantially circular passage `therethrough, a valve stern vhaving aVpolygonal cross-section at1itslower end,a circular flat plate dischaving-agpolygonal shaped aperture the sides -of which extend at anacute angle to the face `of isaid disc, the said Adisc being revolvablewith saidgstem 'froma horizontal to a vertical plane within said.circulanpassaga the said valve stem VV.having Lits vpolygonal endportion engaging the Apolygonal aperture .in the said disc whereby upon:rotation lof the saidstem the disc is caused torevolve and have a.rotating peripheral portion v .thereofin contact with the circularpassage walls. 1. In a radiator valve Vhaving Aa casing `Vwitha L Y Ysubstantially circular -passage therethrough, 'a

.CARL R.V STONE.

